org.picocontainer.behaviors
Class Cached<T>

java.lang.Object
  org.picocontainer.behaviors.AbstractBehavior<T>
      org.picocontainer.behaviors.Stored<T>
          org.picocontainer.behaviors.Cached<T>

All Implemented Interfaces:

Serializable, Behavior<T>, ComponentAdapter<T>, ComponentLifecycle<T>, ComponentMonitorStrategy, LifecycleStrategy

public class Cached<T>
extends Stored<T>

ComponentAdapter implementation that caches the component instance.

This adapter supports components with a lifecycle, as it is a lifecycle manager which will apply the delegate's lifecycle strategy to the cached component instance. The lifecycle state is maintained so that the component instance behaves in the expected way: it can't be started if already started, it can't be started or stopped if disposed, it can't be stopped if not started, it can't be disposed if already disposed.

Author:

Mauro Talevi

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.picocontainer.behaviors.Stored

Stored.Instance<T>

Nested classes/interfaces inherited from interface org.picocontainer.ComponentAdapter

ComponentAdapter.NOTHING

Field Summary

Fields inherited from class org.picocontainer.behaviors.AbstractBehavior

delegate

Constructor Summary

Cached(ComponentAdapter delegate)

Cached(ComponentAdapter delegate, ObjectReference<Stored.Instance<T>> instanceReference)

Method Summary

String

getDescriptor() Get a string key descriptor of the component adapter for use in toString()

Methods inherited from class org.picocontainer.behaviors.Stored

componentHasLifecycle, dispose, flush, getComponentInstance, getLifecycleDescriptor, getStoredObject, isStarted, start, stop

Methods inherited from class org.picocontainer.behaviors.AbstractBehavior

accept, changeMonitor, currentMonitor, dispose, findAdapterOfType, getComponentImplementation, getComponentInstance, getComponentKey, getDelegate, hasLifecycle, isLazy, start, stop, toString, verify

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Cached

public Cached(ComponentAdapter delegate)

Cached

public Cached(ComponentAdapter delegate,
              ObjectReference<Stored.Instance<T>> instanceReference)

Method Detail

getDescriptor

public String getDescriptor()

Description copied from interface: ComponentAdapter

Get a string key descriptor of the component adapter for use in toString()

Specified by:

getDescriptor in interface ComponentAdapter<T>

Overrides:

getDescriptor in class Stored<T>

Returns:

the descriptor